Montes Harbinger
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Montes Harbinger is an isolated cluster of lunar mountains at the western edge of the Mare Imbrium basin. They are located to the northeast of the flooded Prinz crater. The mountains consist of four primary ridges plus several smaller hills, each forming a small rise surrounded by the lunar mare. The mountains are centered at selenographic coordinates 27.0° N, 41.0° W, within a diameter of 90 km. The formation is so-named because the peaks serve as the harbingers of dawn on Aristarchus crater, located to the southwest.